Automatic safety device for the strikers or firing-bolts of small-arms.



A J. TAMBOUR. AUTOMATIC SAFETY DEVICE EUR THE STRIKERS 0R HRING- BOLTSOISMALL ARMS.

APPLICATION FILED DEO. 2U, 1905. 938,349. Patented oe1;.26,1909.

4 SHIRTS-SHEET 1.

Figi. f

J. TAMBOUR. l AUTOMATIU SAFETY DEVICE FOB. STBIKERS OB. PIRING BOLTS 0FSMALL ARMS.

APPLICATION FILED DEG. 20,1905.

4 SHEETS-SHEET 2.

Patented Oct. 26, 1909.

A J. TAMBOUR.

GE Fon THB STBIKBRS 0R HBING Bours of SMALL ARMs.

AUTOMATIC SAPBTM DEVI APPLITION :FILED DEG. 20, 1905.

Patented 0011.26, 1909.

938: 4 sums-SHEET a Figa 'jf www. t. annui on. Mio-mmm Hummm. n c.

l J. TAMBQUR. v y AUTOMATIC SAFETY DEVIOE FOB TEE STRIKEBS 0R FIBIIGBOLTS v0F SHALL ARMS.

I APPLIOATION HLED DBO. 20, 1905.

938,349. Pai-,ema oct.26,19o9.

. SHEETS-SHEET 4.

0. I ./IT".

ZzU/z for JOSEPH TAMBOUR, OE NANTERRE, NEARPARIS, FRANCE.

AUTOMATIC SAFETY DEVICE FOR THESTRIKEE'S 0R FIB-,ING-BOLTS OFSMALL-ARMS.

v Specification ofrLetters Patent.

Patented oet. 26, 1999.

Application led December 210, 1905. Serial No. 292,625.

To all whomfit may concern:

vBe it known that I, JOSEPH TAMBOUR, sub- V, ject of the Emperor ofAustria-Hungary,

' the striker relaxed and brought into engagement'with the nose orcatching 'notch 'of the;

" also a lever` carrying said'pieoe.

of which the following'is a specification.

Vpurpose ofL a catching notch, and thereby Simultaneouslylocksthe-releasing lever and Q the trigger so that in this position boththei striker andl the'trigger areV safety bolted.

This improved safety mechanism for; "strikers canbe applied to oremployed with all smallf'firearmsY having movable breech blocks and inwhich the part carrying the? sear does not/constitute one Vpiece withthe searY-or. so that the vlatter is-independently movable.

strikerpiece. Fig. 2 is a-similar view show-V; ing the parts in position:tor tiring. Fig. 32

is a similar view illustrating the applica-i "tion of the invention to arepeating gun with a hair trigger and in which the sear is inde-ipendently movable, the trigger. or trigger;

device being safety bolted. Fig. 4 is a view; similar to 3 of thesamemechanismj illustrating the trigger or trigger device re-l1 leased.Fig. 5 is a similar view of the mech-` anism shown by Fig. 4 andillustrating the; position ,of the parts after tiring. Fig.` 6 detailAVelevation showing a supporting@ piece, embodied in the mechanismillustrated@ by Figs. 3, 4 and, having spring action whichl holds theSear in safety position and? Fig. 7 is a2 g cross-Section on the line12,-12, Fig. 6. Fig. 8 lillustrates the mechanism shown by Y Fig. 6 fromthe oppositey side. residing at Nanterre, near Paris, France, 'haveinvented certain new and useful Im- Y provements in'Automatic SafetyDevices for i the Strikers or Firing-Bolts of Small-Arms,

i and illustrating thetrigger tongue inserted This invention relatestoautomatic safety mechanism 'for the striker or firing bolt of` Y smallarms in which a vertically movable Vlocking bolt, actuated through themedium of a compulsory motion byra well known; rfor-mbt releasing leverwhen-the striker is i manually relaxed or the mechanism slightly lcocked, comes into engagement with a nose T on the striker pieceandwhich serves they Fig. 9 is a view of the devices shown by Figs. 6, 7and Sand illustrating the striker released.v Fig. 10 is a sectionalelevation showing a dinerent arrangement of the trigger mechanism in the`said mechanism. Fig. 11 is a view similar to Fig. 10 of the samemechanism and illustrating the position of the parts of the latter atthe'moment the sear is moved down .by means of the striker and triggertongue and before the striker moves forwardly. Fig. 12 illustrates apart of the mechanism as shown by Figs. 10 and 11.

Fig. 13V is a. side elevation of the form of breech block used with therifle mechanism illustrated by Figs. 10 and 11. Fig. 14 is acrosssection on the line 20-20, Fig. 13.

VIn the construction shown by Figs. 1 and 2, the releasing lever l) hasYits/'front arm subjectedV to 'the pressure of a spring c engaging thelower edge thereof andy is pivotedV at a so that its pressure piecepassing through the trigger guard plate a is 'located under the reducedextremity of the Y j butt. The Jfront end otthe releasing lever In theaccompanying Vdrawings two forms of small arms are shown as providedwith; the safety device for` strikers orffiring bolts Ain accordancewith the features of the invention. f Y In thedrawings2-Figure l is asectional elevation of a? portion of a Mannlicherre Vpeating rifleconstructed in accordance with Hthe features ofthe invention andshowing@ 'terminates ina rounded head which is' engaged in a notch e2 ofa locking bolt e having at its upper part a slot e3 which is guided byapin el; above the slot the bolt e' is reduced 1n wedge shape, the sidetoward the barrel beingv rounded, while the rear side ismade-hook-shaped at e. .At the right hand side of the Striker head isprovided,

according tothe present invention, anose f. 1

The releasing lever b is provided with a lateral projection g'which, inthe position of rest of the lever,is situated behind a projection z, ofthe trigger bar t continuing from the trigger 15,' as shown in Fig. 1.

The action of the safety device is as tolvlows: By means of the spring@the Jfront end of the releasing lever b Vis normally held in a raisedposition whereby the projection h of thetrigger bar is made toV abutagainst of the releasing lever b so the projection g is locked andthe'locking that the 4trigger -bolt e has its upper Vend projected intothe head. The stri-ker head v path of the striker is of rounded Jformand has an incline, and

on opening the breech block slides with its rear lower surface over theupper' end of the locking bolt and depresses the said lever b' againstthe resistance of the spring c. Im-

mediately subsequent to this operation the locking bolt e isautomatically forced upwardly into the path of the striker head and thenose f engages the locking bolt as soon as the latter is relaxed orretreats far enough to permit such engagement, and this automatic actionwill ensue if the mechanism is manually cocked oi' the breech blockmoved by hand. This locked position, shown by Fig. 1, not only eectuallysafety bolts the striker in the safety position, but also locks thereleasing lever which coperates with the locking bolt. The releasinglever is thus rendered perfectly rigid and consequently also eiiectuallylocks the trivger and firing mechanism so that an accidental tiring ofthe gun in this position of the parts cannot occur by pressure on thetrigger or from any cause. To dispose the parts for tiring, as shown byFig. 2, the striker can be fully cocked by manually drawing back thestriker head or the breech block. In the event that the striker isreleased during such drawing back, or of its being jerked out ofengagement with the cooking notch, it is prevented from being completelythrown forward by the locking bolt. If the gun is grasped at thea'educedportion of the butt when the striker is cocked, the exposed rear end ofthe lever b is thereby pressed into the said portion of the butt andrelease of the lock mechanism is effected, because the locking bolt willbe drawn down out of the path of the striker head and the trigger barset free, which latter action, in consequence of the peculiararrangement of t-he projections on the trigger bar and releasing lever,is only effective when the locking bolt is drawn completely out of thepath of the striker.

In small arms with movable breech blocks and in which the part carryingthe scar is not rigidly IiXed to the latter, the sear is directly heldin the locked position, not by a rigid lever arm, but by a support-ingpiece inovably arranged thereon and having spring action, see Figs. 3 to9, both inclusive. In this arrangement, without provision of suitablemeans, a repeating action would be prevented by the locking bolt whichis maintained in a raised position, and the said bolt in the normalposition of the releasing lever with the intermediate lever, constitutesa rigid obstruction, and consequently prevents the forward motion of thebreech block which is withdiawn on repeating, as the right hand sideguiding iib g/ of the breech block, see Figs. 13 and 14, showing asubstantially similar construction of breech block, would strike againstthe upper end of the locking bolt. To ermit repeat ing act-ion to beeffected in this form of the mechanism, there is provided an upwardlyprojecting setting lever W` pivotally mounted on the breech casing toengage with the locking bolt and projecting into the path of the righthand side rib jf/ of the breech block, which lever is pressed downwardlyon the forward motion of the breech block and causes the locking bolt tolower, thc said locking bolt remaining in lowered position so long asthe lever is acted upon by the rib.

Figs. 3 to 5 show a firearm with a rectilinear breech block motion andwith hair trigger lock, having the above described safety bolting devicefor the striker. The scar lever 7) carrying the sear 0 is not rigidlyiixed to the latter, so that Afor the re quired safety bolting actionthe abutment of the sear lever would not be sutlicient; on this accountthe sear 0 itself is locked by means of a supporting piece g, Fig. 9,which is pivotally mounted on the pin t of the arm r of the elbow levers, which is pivotally mounted on the trigger guard plate, the piece gbeing acted upon by a spring u. On pressing inward the releasing leverthe lever s, together with the supporting piece 1 7, is turned so as tofree the sear o as shown at Fig. 4. When the striker has been thrownforward the cooking notch f2, which is formed as a rib preferably of theshape shown and having a horizontal lower surface, presses the Sear 0below the under surface of the sear lever p so that the su porting pieceg on the movement of the e bow lever s into the safety position, cannotmove with the latter but bears against the projecting part of the sear0, compressing the spring/zt and remaining in this position, Fig. 5,until the striker is again cocked, and the sear, in consequence thereof,is raised under the action of its spring o shown in dotted lines;whereupon the supporting piece g is moved by its spring u from theposition shown at Fi 5 into the position shown at Fig. 3, placing itselfdirectly under the sear o.

The locking bolt e, upon which acts the releasing lever b through themedium of the elbow lever s subject to the pressure of the spring e,constitutes with the releasing lever, when in the protruded position, arigid obstruction and is then situated in the raised position so thatthe upper end of the locking bolt prevents the shifting of the breechblock for the purpose of repeating, inasmuch as on pushing forward thewithdrawn breech block its right-hand side guiding rib q/f, Figs. 13 and14, would strike against the locking bolt and thereby prevent theclosing of the breech block. In order to obviate this hindrance of therepeating action there is pivotally mounted on the side of the breechcasing a setting lever W, which engaves with the locking bolt e andprojects with a nose an into the path of the right-hand side rib g/,ofthe breech block, Fi 's. 13 and 14. On drawing back the breech bIock theright- Y the latter and depresses it, as sh foriginal position bolt,immediately hand side guiding rib yfthereof, into whose path the lockingbolt e projects, passes over own in dotted lines at Fig. 4. As thelocking bolt e, the intermediate lever s, and the releasing lever b areconnected, the spring e', which l would be compressed by such motion,would theirV at once raise these parts again into so as to raise thelocking after the guiding Yrib of the breech block has passed over thelatter.

' purpose of ing bolt Y the locking bolt.

Vinto the chamberA of Y VThis'is, however, 4prevented by the .right-Qhand rib g/ of the withdrawn breech block which passes over the beak Xof the setting lever W, so that the locking boltV e is forcibly lowered.VThe guiding rib y of the breech back unhindered,

the locking bolt this hand side guiding rib y and the breech block canbe entirely withdrawn vfor the raising a cartridge outV of the magazineand can then be pushed lforward again Vfor'fintroducing the raisedcartridge the gun. During such forward motion of the breech blocktheflockremains lowered until thebeak X of the setting lever has beenfreed by the passing away of the rib y, which only occurs when theguiding rib y of the breech block has already passed away from above Bythis means,conse quently, the repeating action can take place v6oY p V8,and to the Vclearly shown by unhindered owing to the action of thesettinglever W. Y

In the construction shown by Figs. 10, 11 and 12, the trigger asfollows: The trigger blade 1 of the rear trigger 1a 2 and remains underthe pressure of a spring 3 engaging the rear portion thereof, as Figs.1() and 11, the said trigger blade 'interlocking in the trigger catchpiece 4 as soon as the said trigger blade 1 is disposed in properposition by drawing backwardly on the said trigger 1a, seeV Fig. 10.'The trigger catch piece 4 is pivl V otally mounted and revoluble on apin 5 of the trigger tongue blade 6 of the forward trigger 6, and saidcatch piece is engaged by a spring 7, and also supported on the triggertongue blade 6 in such position that its lower end will be'adjacent tothe striking surface or shoulder 6b of the trigger tongue blade 6. Thesear 0 is revolubly mounted on the pivot 8 and works in a seat in thesear lever p, as shown by dotted lines, and is held in proper positionwith respect to the said lever by means of a spring lu. The sear leveris' also pivotally mounted on the sear pivot frontextremity thereof anoscillator 9 is movably attached by a pin 10 engaging the front endofthe sear lever, the

ment with an oscillator projection orV supiedge which bears on YYseat16, and its mechanism is arranged,

is movably held by a pin or boltV ever 17. When the trigger 6a fengaging Vcauses Vthe stop Vlever Aport 11 on the. under side of thebreech block, a spring 12 being interposed between the oscillator andthe sear lever p. The spring 12 not only operates to hold the oscillator9 upwardly as shown to engage the support Y11 on the under side of thebreech block, but also forces the rear extremity of the sear` lever punder and in engagement with a stop lever j 13, the rear extremity ofthe sear lever being wedge-shaped. The stop lever 13 with two limitingVsears 14 freely projects through an opening 14a in the breech casing,and said stop lever 13 is held by the sear lever ,29 against the bottomwall 15 of the breech casing. The stop lever 13 has a seat 16 therein,as Vshown by dotted lines, Y aY bell-crank lever 17 is movably arrangedand held by a pivot 18, one of the arms of the bell-crank lever beingdirected upwardly, The smaller and lighter arm of,k the bellcrank leveris in the position shown` by Fig. 10, being held in such position by theweight of the remaining portion of the lever, this arm has an oblique orinclined front the front wall of the upper edge has an obtuse angularslope and coperatesor contacts Ywith the bottom wall 15 of the breechcasing. f Y When the trigger 6a is drawnbackwardly,

as shown by Fig. 11, the trigger blade 11s thrown out of engagementwiththe catchv piece 4 and the latter will engage the striking surfaceof shoulder 6b of the bladev 6. When the trigger blade 1 is released itwilly be forced upwardly by the action kof the spring 3 thereon and theupperinclined 'or oblique surface thereof, as atV 1b, -will be ressedagainst the under arm of the crank and its blade 6 are in the positionshown in Fig. 10, the said blade 6 will engage the lowerv arm of thecrank lever The trigger" blade 1, by the lower arm ofthe lever 17,

forces said lever around on its pivot 18 until the upper edge or theupper arm of said crank lever strikes against the bottom wall 15 ofthebreech casing, and this operation 13 to be turned and set up anengagement with the rear wedgeshaped extremity of the sear lever p. Thisengagement of the sear lever p by the stop lever 13 depresses the Vrearextremity of said lever against the resistance of the spring 12 andforces the forward vprojection of the sear lever upwardly, as shown byFig. 11, into engagement with a shouldered projecand Vin this seat i andtion 11a of the breech block, and by this and down motion and engagingthe nose of the striker device when the latter is moved, the noseserving as a catching notch for the locking bolt, a releasing leveroperatively associated with and actuating the locking bolt, and atrigger also operatively associated with the said lever and held fixedat intervals, the trigger being liberated by the actuation of thereleasing lever.

2. In an automatic safety device for small firearms of the classspecified, a movable breech block having a striker device, a lockingbolt having a rounded portion and a slantingly cut olf portion, thelocking bolt being also provided with a recess in its lower portion, anelbow lever having a front end which engages the said recess, a triggerguard plate to which the said lever is pivoted, and a releasing leveroperatively associated with the elbow lever for actuating the latter.

3. In an automatic safety device for small firearms of the classspecified, a movable breech block having a striker device, a lockingbolt, an elbow lever operatively associated with the locking bolt andhaving an arm, a supporting piece movably arranged `on the arm of theelbow lever and under spring stress, a sear held and maintained in itssafety position by the supporting piece, a sear lever, and a releasinglever which when pressed inwardly actuates the supporting piece andelbow lever and releases the sear.

4. In an automatic safety device of the class specified, a movablebreech block having a striker device and provided with ribs at oppositeportions, a locking bolt operatively associated with the striker, and. asetting lever combined with a releasing lever, the setting lever beingoperable to project into the path of the rib at one side of the breechblock and pressed downwardly whenever the breech block is displaced sothat the said bolt downwardly and maintains the same pulled back out ofthe path of the guiding rib at the other side of the breech block.

YIn testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOSEPH TAMBOUR.

Vitnesses:

Josnr RUBARCK, ALvnsTo S. Hoetnc.

setting lever moves the locking

